How Kavaxas joined the Tourney
Lord of the Demodragons and ruler of the Netherworld, the main antagonist in the first four episodes of Season 5. He is dangerously powerful with the ability to fly, breathe green fire, shoot lasers from his hands, drain the souls out of anyone, has skin tough enough for a sword to break upon, and can animate the dead. In addition, he is immune to April's exceptionally strong psionic powers. Kavaxas is called upon by Tiger Claw using the Scroll of the Demodragon, kept at bay with the Amulet of the Ancients as Tiger Claw plans to use Kavaxas' power to return the Shredder to life. However, having killed Hattori Tatsu prior, Kavaxas revived the Shredder as part of a process to begin his agenda of taking over the living world and had Shredder destroy the amulet to cement his dominion. However, the amulet was restored and Kavaxas is forced to send his spectral force back before being dragged into the Netherworld by the Zombie Shredder.
After Shinnok's defeat, Kavaxas has managed to escape his Netherworld confines with an army of revenants. He started by killing mob bosses targeted by Nagisa.
Character Select Screen Animation
Kavaxas floats in midair.
After the announcer calls his name
Kavaxas flies around and blows fire as the camera zooms. Then he says "Mortal! You dare call upon Kavaxas? Lord of the Demodragons, Ruler of the Netherworld?!"
Green Fire (Neutral)
Kavaxas breathes green fire out of his mouth.
Fire Jet (Side)
Kavaxas flies forward spraying green fire from his hands.
Inferno Fist (Up)
Kavaxas flies up doing a fiery uppercut, then does two punches and a hammer punch.
Dark Laser (Down)
Kavaxas raises his hands and rains lasers on his opponent.
Fires of Hell (Hyper Smash)
Kavaxas flies around the stage and sets on fire, slowly damaging his opponent for 25 seconds.
Demodragons Arise (Final Smash)
Kavaxas uses his Demodragon Staff to summon demons and zombies and they converge on the opponent. If they hit, a cinematic plays where Kavaxas mocks "I rule this world! Too bad you won't live to see it." Then the revenants and demons bombard the opponent with a series of blows. Two female zombies raise the beaten opponent. Kavaxas then says "Survival of the FITTEST!" then burns the opponent with his green fire.
- Kavaxas makes a glyph and says "I, Kavaxas, swore one day I would rule all dimensions."
- Kavaxas steals the opponent's (2nd place in multiplayer) soul and says "Your life belongs to me now!"
- Kavaxas shoots green fire in all directions and says "All will know the meaning of death and despair."
Kavaxas flies out of the Netherworld portal and says "I will burn you and the rest of these abominations TO ASH!"
- Kavaxas's rival is Koro-sensei's Class 3-E student with a passive nature, Nagisa Shiota.